help me please in the ios

hi every one
i have seen in some guides if the game give you black screen you have to make you ios up to date
does that mean all my ioss installed in my wii i should update ??
or just like ios 223-222-224-249 ???
and another question .. to update them i have to download them by(nus) then copy them into wad then install them by wad manger and the ios will be up to date ...... is that right ?? or there another way

Well you have cIOScorp installed. You will have to uninstall it so that you can install the IOS you need. Or upgrade to darkcorp I suppose. I recommended uninstalling it.... ithian has a great guide for that in the guides section.